Please play Fate/Go with me.

"Let's deal with the monster in front of us first! I believe you've now obtained the Heroic Spirit's memories and related knowledge. If we let it run rampant like this, countless people will suffer."

"Is that so... I understand." Yukino Yukinoshita looked at the monster wreaking havoc and could only nod.

"But after this is resolved, you have to give me an explanation. You said you were busy practicing for the national tournament and couldn't take care of club activities, but now you're doing this with a girl in a bodysuit?" Yukinoshita looked at Shirou and gave him a chilling smile.

"Haha, actually I was planning to show up at the club tomorrow too," Shirou said with a smile, though he felt there was something creepy about the girl's smile.

"Is that so? Then I'll wait for your explanation." Yukinoshita's icy smile remained unchanged.

Yukino Yukinoshita is a more mature and rational type than the average high school student. Although she has things she's not good at and a childish side, she chooses to uphold her 'absolute justice' in this situation.

The moment she was possessed by the Heroic Spirit, she gained the Heroic Spirit's past combat experience and learned about the place from the Heroic Spirit, understanding why the monsters had appeared.

The girl usually enjoys reading, so she is naturally very familiar with Minamoto no Yoshitsune, a well-known tragic hero.

As a legendary general, he won many crucial battles, unifying the then-divided province of Wataru. His achievements overshadowed those of his elder brother, Minamoto no Yoritomo, who became suspicious of him. Forced to flee, Yoritomo ultimately committed suicide. Following this, Yoritomo quickly unified Wataru, established the Kamakura Shogunate, and became the true ruler of the province.

Because of their knowledge of history, they felt even more pity and sympathy for this heroic girl who represented the tragic hero's youth, and seemed to resonate with her in some way.

They both harbor complex feelings towards their older sister (brother), and as geniuses, they both have aspects that are not understood by others.

Perhaps this is why Yukino Yukinoshita has an 80% compatibility with the Heroic Spirit Ushiwakamaru residing in her body, allowing her to better unleash the true power of the Heroic Spirit compared to Shirou.

Correspondingly, she seemed to be more influenced by the heroic spirits. Like Ushiwakamaru, she had forgotten what fear was and just coldly looked at the chimera, drawing her katana from her waist.

Shirou called out to the pink-haired girl, "Mash, your ally has joined! Now, what's the plan?"

"Shirou-senpai! To defeat a chimera of this strength, we have to rely on our Noble Phantasms!" Mash, who was fending off the chimera, turned around and was immediately disappointed, complaining, "Why is it another Rider class?! My element is weak against it!"

"Huh? Did I make a mistake again? Shouldn't they all be strong since they have the Holy Grail? What should we do now?" Shirou asked, puzzled. In his previous life, every Heroic Spirit was quite strong. The class advantage wasn't so obvious either.

"I don't know! Shirou-senpai, you idiot! I was hoping you could call a strong and reliable partner! But you were completely captivated by the allure of uniforms! That's why you chose such a revealing girl, right? What can we do now? We can only tough it out!" Mashu shouted angrily at the boy.

"..." Shirou couldn't understand why his junior had suddenly gotten angry.

"Speaking of which! Shirou-senpai, when did you become friends with Yukinoshita-senpai?" Mashu asked, frowning.

She could hardly believe it. Only a day had passed, not even 24 hours had actually elapsed! Her trusted senior, Shirou, had used the account she gave him to draw a European certificate and even used her account to add other girls as friends! What else was there that she didn't know?

It's like a pharaoh who, even in death, couldn't forget his dream lover, only to find her turned into a ball upon seeing her again. She feels the world has changed too quickly; she can't accept it. Where did that earnest, kind-hearted person go? Did playing games for a day corrupt him?

Mashu channeled her inexplicable frustration and annoyance into power, raising her shield and slamming it hard into the chimera's lion nose, hitting a vital spot and causing the monster to scream in agony.

At this moment, Yukino Yukinoshita stepped forward and said, "If I had the Demon Sword 'Umezu,' I could definitely cut down monsters of this level with my Noble Phantasm. That's what the Heroic Spirit within me told me."

While Mash was fighting the monster, she kept observing the black-clad chimera, searching for a solution. Then, the Heroic Spirit within her spoke in her mind, telling her how to win.

"Aren't our current weapons good enough, Yukinoshita-senpai?" Mash shouted, raising her shield to block the chimera's attack.

"Hmm, it seems that the summoning was incomplete. The sword is just a slightly sharper imitation now." Yukinoshita said, raising her sword and rushing forward. Using her agile movements like a swallow, she dodged the chimera's claws and swung her sword at the snake's tail, but only managed to cut off the snake's scales. As she said, the sword in her hand was now just a shell.

"This is a problem of insufficient compatibility! But there's no way to improve it all at once right now." Mash raised her shield to protect Yukinoshita as she rammed into the chimera's outstretched claws, and once again, a dull thud echoed as a hammer struck a heavy object.

"Mash, hold on a little longer! I'll figure out a way to use the Noble Phantasm!" Upon hearing Yukinoshita's words, Shirou's eyes lit up, and he shouted to the girl.

The universe contains the profound principle of mutual restraint and interdependence; flames that burn everything and bring destruction can be extinguished by cool water. A venomous snake that can kill a ferocious beast can be eaten by a mongoose resistant to its venom.

As for dealing with monsters, there are also special treasures for slaying demons and subduing monsters, such as the demon sword that Yukinoshita mentioned, which is stained with the blood of countless demons.

"The Demon Sword 'Thin Green,' right? Let me confirm!" As he spoke, a light appeared in Shirou's eyes. Through his eyes, the boy understood his situation even more clearly.

Because he was possessed by a Heroic Spirit, the boy's current state was very similar to that of a pseudo-Servant like the Second Generation who obtained incomplete power from Zhuge Liang. Although he seemed to be suppressed and weakened a lot because he was in this world, he could still fight with the help of the magic power provided by the Holy Grail.

Previously, because this was a new world where magic did not exist, he couldn't even use enhancement magic without special means.

In his previous life, he continuously enhanced his eyes, eventually developing the 'Analysis Mystic Eyes' on his deathbed. He used these Mystic Eyes as a conduit for transmitting magical power, solving the problem of the nuclear power plant's core meltdown. The enhancement magic he used on the bow and arrow was also accomplished using his Mystic Eyes.

The Mystic Eye, as an independent magic circuit, can generate its own magic activation formula, and can also consume life force. Compared to ordinary magic circuits, it is perhaps closer to the movement of celestial bodies, and amazingly, it can still be used even in this world without mysticism.

Although the Magic Eye simply performs a long-distance perspective analysis of an object, similar to a 3D scanning model, it obtains data about the target.

It can only be used to analyze and understand the basic structure and formation process of the 'observed object'; unlike other famous magic eyes, it does not have great power, but it is surprisingly useful in specific situations.

With his magic power now abundant, the boy can do things that were previously impossible. For the first time since being reborn into this world, Shirou uses the magic he is best at.

The boy's demonic eyes flashed with a jewel-like amber light as he observed the demonic sword in Yukino's hand, his consciousness connecting with the Source hidden behind the Holy Grail through the Heroic Spirit within him.

With the help of the Mystic Eyes, the boy's understanding of the Noble Phantasm has reached a new level. In some ways, it is no longer ordinary magic, but a more special 'miracle' that is close to magic.

"Projection started (Traceon)!"

Chapter 13, The Demon Sword in Pale Green, is complete.

Information about that Noble Phantasm flooded Shirou's mind. His Mystic Eyes, emitting an amber-colored gem-like light, seemed to connect with time and space, allowing him to witness the events that had occurred since the Noble Phantasm's birth.

He saw an ancient master craftsman sharpening a sword blank, sharpening one side. When the sharp edges of the sword tip were ground into an arc that made it easy to chop, the demonic sword emitted the first cold light to descend upon the world.

Then, in a traditional Japanese-style room, an ominous dark shadow loomed behind a sick woman with long, dark purple hair. Suddenly, the woman opened her eyes, drew her sword, and slashed at the shadow. The shadow let out a scream and disappeared.

This was a tall, voluptuous, and imposing female general who remained as powerful as ever, even when she was ill.

The woman seemed to sense something and suddenly turned around. Her eyes seemed to transcend time and space, meeting the boy's gaze for a moment. Whether it was an illusion or not, Shirou somehow saw 'motherly love' in her eyes for that instant?

In a moment of bewilderment, the scene shifted to the next one. A samurai sword was enshrined in the shrine of Hachiman Daisakusho. The moonlight shone through the window onto the sword, and a hissing sound came from inside the scabbard.

In the next scene, a young girl riding a black steed wields this samurai sword, charging into battle and continuously severing the heads of enemy soldiers, creating one legend after another.

Ultimately, with the death of its owner, it was collected by the Genji family. After the Genji family's downfall, it changed hands several times before being placed in a museum, where it has remained ever since.

The boy's mind returned from his time travel, his demonic eyes gleaming with jewel-like light, and the Noble Phantasm gradually took shape in his mental world.

"The Demon Sword 'Usu-iro' was originally named Hizamaru and was one of the Minamoto clan's treasures forged during the Heian period."

"It was named 'Spider Cutter' because it was used by Raikou to kill the Tsuchigumo, a monster that spread disease."

"Because it is tainted with too much demon blood, it will let out a snake-like roar at night, hence the name 'Roaring Ball'."

"When it was passed down to Yoshitsune, it was called 'Thin Green'!"

Powerful magic converged into a single line that surged from the boy's arm and palm, transforming into particles of light and a circuit diagram-like beam of light, condensing into a samurai sword. Inside the blade, it was constantly changing, as if recreating in different ways the forging process it had undergone, the sharpening and polishing by the wielder, and the sparks ignited by its collisions with monsters and enemy weapons on the battlefield.

Finally, the demonic sword emitted a hissing, blood-craving cry, and a cold glint flashed from its slender blade.

The demonic sword 'Thin Green' appeared completely in the boy's hand. Although it was a projected replica, it was indistinguishable from the real thing to the naked eye. With the amplification of his Mystic Eyes, Shirou's projection magic had reached a new level, and the difference between it and the real thing was now negligible.

"Snowy! Here!" Shirou shouted, throwing 'Thin Green' at the girl.

The black-haired girl, possessed by the heroic spirit, was now influenced by it, learning much about military strategy and martial arts. She also lost her fear, displaying the heroic spirit of a young genius general. Her gaze remained fixed on the chimera, and without raising her head, she reached out and firmly grasped the hilt of the falling 'light green' sword.

The girl lifted the thin green blade, her slender jade hand caressing the blade as if she were stroking a lover. She flicked her finger lightly, producing a crisp sound, and said with a satisfied smile, "This is exactly the feeling I want, Shirou. I like it very much."

"Oh! Can I cut him now?" Shirou replied with a light laugh.

"The Noble Phantasm is still 20% charged; we'll need some more time to prepare," Yukino Yukinoshita said, looking at the hybrid monster.

The Noble Phantasm of a Heroic Spirit is the embodiment of their past achievements and experiences, or a weapon praised in legends. The Noble Phantasm is activated by calling out their true name and infusing them with magical power.

Most Noble Phantasms require a certain amount of time to activate; some require chanting incantations, while others require a massive infusion of magical energy for charging.

According to the rules of the FGO system, her Ushiwakamaru is equipped with the Craft Essence Kaleidoscope, a second-magic Craft Essence item that has already completed 80% of the energy preparation required to activate the Noble Phantasm from the very beginning.

"Leave this to me!" Mash raised her large shield, which emitted a white light that enhanced Yukino's body. She used the skill 'The Hazy White Wall'.

The central part of the round table where the Knights of the Round Table of King Arthur sat during their meetings represents the symbol of Camelot. It possesses various magical abilities, bestowing the blessing of the strongest defense and granting the blessing of rapidly gathering magical power to complete the charging of Noble Phantasms.

"That's enough, I can win now!" Yukino Yukinoshita flicked the thin green blade with her fingertip, producing a clear ringing sound, and said decisively.

"Is that so? Then I'll take you there!" Shirou summoned Georgios's magical Bayard, who had descended to earth as a Rider, and charged towards the mutated chimera, which was over three meters tall.

Yukino Yukinoshita stood with her feet resting on Shirou's back, her left hand on Shirou's shoulder, and her right hand holding up the demonic sword 'Uzumi' that had slain countless demons.

"Mash! Step back!"

When he reached the chimera, Shirou drew Ascalon and, riding the white horse, charged towards the chimera to draw the monster's attention.

Yukino leaped high from her horse, her fur-wrapped scabbard, resembling a raccoon's tail, swaying behind her.

Swift and powerful, it leaped onto the chimera's back in an instant, its body tumbling gracefully in the air like a dolphin leaping from the water.

"Drink! Dan-no-ura---HASSO-TOBI (Eight-ship jump)!!!"

The blade flashed past in several long arcs with the force of thunder!

"Roar!" The pitch-black chimera let out a mournful cry, crashing to the ground with half its body severed, revealing pinkish-red muscles. Like a volcanic eruption, it sprayed blood everywhere. The torn wings were attached to half of its body and hung down, while its claws were habitually severed off, finally turning into black fluorescence and disappearing in the setting sun.

"Shirou-senpai! Yukinoshita-senpai! Great, we did it!" Mashu put away her shield and turned back into her school uniform. She ran over happily and gave Shirou a high five.

"Oh! Thank goodness you're here, Mash!" Shirou extended his hand in response, praising his junior.

At this moment, the black-haired girl also sheathed her sword, raised her hand, and walked towards the two of them.

"Yukinoshita too, thanks to your strong support!" Shirou smiled and went up to her, raising his hand.

Yukinoshita dodged Shirou with disdain, brushed past his hand, and walked towards Mash.

Mashu chuckled and raised her hand to high-five Yukinoshita in celebration, but her wrist was grabbed and held tightly as if she had been arrested.

It seems that because the battle was over, the influence of the heroic spirit on the girl's spirit and will weakened, and the girl returned to her usual aloof and perfect top student.

"Are you Mashu, the first-year student who transferred here before? Can you explain what's going on?" Yukinoshita's gaze was fixed on Mashu, filled with three parts anger and seven parts suspicion, as if she were settling scores.

“Um… Yukinoshita,” Shirou stepped forward to interrupt, seemingly wanting to say something but then stopping himself.

"Shut up! I have something important to ask you!" Yukinoshita glared at Shirou, this time with seven parts anger and three parts suspicion.

Yukinoshita turned to the pink-haired girl and questioned her sternly, "Mash, you've been recommending this game to everyone at school. Did you know from the beginning that such monsters would appear, and that's why you were looking for people to fight them?"

"I'm sorry! Senior, what I did was really rude, but this is an important matter that concerns everyone. Please explain it to me properly." Mashu bowed her head and said, unable to refute Yukinoshita's words.

Although she was prepared from the beginning, it is also true that she took advantage of Shirou's gentleness and integrity and dragged him into the mess.

"Hey... Yukinoshita, there's actually something very important." Shirou walked up and whispered a reminder.

"What!" Yukinoshita asked impatiently as she turned around.

"Um... Yukinoshita, how long are you going to keep up this blush-inducing act?" Shirou covered his eyes with one hand and handed the girl the coat he had picked up.

At this moment, the black-haired girl was wearing what appeared to be a magnificent black brocade leather armor with blue and gold plates. The only protective feature was the shoulder guards on the left and right sides, while her back and front, which needed the most protection, were completely exposed.

In fact, apart from this strange armor, her body seemed to be wearing only red swimming trunks, exposing her navel and back, while her upper body was also half-covered.

"Hentai! Don't look over here!" Yukino Yukinoshita only then remembered her current outfit, and with one hand, she grabbed Shirou's coat in a blur, covering her front.

This time, the girl couldn't laugh anymore. Her face flushed red as she glared at Shirou, the meaning of which was self-evident: "Why didn't you tell me sooner?!"

"Well, actually it suits you quite well, you know. A majestic samurai girl, both beautiful and cool..." Shirou, who had been glared at, turned his head away and tried to comfort the girl.

For example, you can not only kill with your gaze, but you can also directly slash someone with a knife...

Yeah, I feel like it's really going to get cut, so I won't say it out loud.

The outfits that look quite appealing in the game are actually quite embarrassing to see in real life. Especially when worn by a character like Yukinoshita, who is usually aloof and arrogant, it's practically unfair.

Chapter 14 The Price of Heroic Spirit Possession

Ushiwakamaru is like a cat, sometimes unpredictable. He likes to jump around on the rooftop, and like a cat suddenly bringing a dead bird or mouse to a loved one, he will deliver the head of an enemy to the person he likes.

Yukino Yukinoshita's favorite animal is the cat. She realizes that the cat is a cute little girl at heart, and she feels sorry for the cat because of its tragic fate and her natural personality.

She'd accidentally maxed out Ushiwakamaru's Holy Grail power and leveled her to 90. Her love for this Servant was undeniable, but even if she liked him, it wouldn't warrant wearing such an embarrassing outfit. Thinking back to how she'd been so focused on battle without any awareness...

He jumped up, rode a horse, and even did a 360-degree flip in the air...

The girl maintained a somewhat indifferent and detached expression, but inwardly she was on the verge of collapse. With a strong sense of pride, she always held herself to high standards and had never lost her composure like this before. And of all people, it had to be in front of this person…

"Since Yukinoshita is so shy, Mash, you'd better hurry up and turn her back," Shirou said to Mash.

“Shirou-senpai, summoning a Heroic Spirit in the FGO system usually comes with conditions. As the price for borrowing power, the Heroic Spirit needs to have one wish fulfilled before it will leave the body. But don’t worry, Yukinoshita-senpai, we are actually in a different dimension right now, and ordinary people can’t see us in this state of Heroic Spirit possession,” Mash explained.

"Really?...No one else can really not see it?" At this moment, Yukinoshita grabbed Mashu's clothes, tears welling up in her eyes as she asked urgently.

The girl's face was flushed with shyness and excitement. Her delicate beauty, accentuated by her attire, was tinged with a hint of allure, giving her a captivating and pitiful charm. Combined with her samurai attire, she possessed an inexplicable and bewitching allure.

"...!" Mash and Shirou both felt their hearts flutter for a moment, as if they were under a spell.

'I never expected Yukinoshita, who's usually as cold and beautiful as a fairy, to show such an expression... This destructive power is practically an anti-personnel Noble Phantasm,' Shirou thought.

'I think I can understand why Shirou-senpai summoned Yukinoshita-senpai. She's so cute and beautiful, even my heart is racing. Gudako-senpai, what should I do?' Mashu thought to herself, cupping her blushing face in her hands.

Just then, footsteps were heard outside. Someone happened to be passing by and was startled when they saw the destroyed wall.

"Whoa!? Is there an earthquake?" the passerby exclaimed in shock, but did not look at Shirou and Yukinoshita.

"..." Having turned back into Mash, she quickly ran inside and hid in a corner where she couldn't be seen from the outside.